public class Example5_3 {
	public static void main(String args[]) {
		CheapGoods cheapGoods = new CheapGoods(); 
			cheapGoods.newSetWeight(198);
			System.out.println("对象cheapGoods的weight的值是:"+cheapGoods.weight);
		    System.out.println("cheapGoods用子类新增的优惠方法计算价格:"+cheapGoods.newGetPrice());
		    cheapGoods.oldSetWeight(198.987);
		    System.out.println("cheapGoods使用继承的方法（无优惠)计算价格:"+cheapGoods.oldGetPrice());
	}
}
